You may have heard of the world’s thinnest Android phone, the Oppo Finder, when the company put it up for pre-order last month. At just 6.65mm, the company also wanted to show off how tough the device is, and it recently did so by using it to hammer nails into a piece of wood. We would not recommend doing this with any smartphone. Nevertheless, at $393, Oppo Finder packs some decent specs with its 1GB of RAM, a dual-core 1.5GHz processor, Android 4.0, and 4.3-inch Super AMOLED Plus display.